Instant heating circuit board of water dispenser

Abstract

The utility model relates to the technical field of instant heating circuit boards, in particular to an instant heating circuit board of a water dispenser. According to the technical scheme, the instant heating circuit board comprises a shell and a shell cover, an instant heating circuit board body is fixedly installed in the shell through fixing studs, a sealing groove is formed in the position, close to the edge, of the upper surface of the shell, a sealing ring is arranged in the sealing groove, the shell cover is fixedly installed on the upper surface of the shell, and the shell cover and the shell are fixed through screws. The lower surface of the shell cover is provided with an insertion ring, the insertion ring is inserted into the sealing groove, one side of the outer surface of the shell is provided with a wiring hole, the upper surface of the instant heating circuit board body is fixedly connected with a connecting line, the outer surface of the connecting line is fixedly sleeved with a rubber sleeve, and the rubber sleeve and the connecting line both penetrate through the wiring hole. A limiting ring is arranged on the outer surface of the rubber sleeve. According to the utility model, the instant heating circuit board of the water dispenser has a waterproof function, and the subsequent maintenance of the circuit board is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of instant heating circuit board technology, specifically an instant heating circuit board for a water dispenser. Background Technology

[0002] The instant heating circuit board of a water dispenser is the core component that enables the instant heating function. It usually adopts an advanced circuit design that can accurately control the working state of the heating element to quickly heat the water to the set temperature. The circuit board integrates a variety of functional modules, such as a temperature sensor interface for real-time monitoring of water temperature; a power control circuit that can adjust the heating power according to different heating needs; and a protection circuit with over-temperature protection, leakage protection and other functions to ensure safe use.

[0003] Currently, instant heating circuit boards for water dispensers typically use an encapsulation process to achieve waterproofing. However, removing the encapsulation layer during later circuit board repairs is complex and can easily damage the circuit board and other components. Moreover, it is difficult to completely remove the encapsulation layer, which greatly complicates repair work and increases repair costs and time. Therefore, we propose an instant heating circuit board for water dispensers. Utility Model Content

[0004] The purpose of this utility model is to provide an instant heating circuit board for water dispensers, which has the advantages of enabling the instant heating circuit board to be waterproof and facilitating subsequent maintenance of the circuit board. It solves the problem that current instant heating circuit boards for water dispensers usually use a glue injection process to achieve waterproofing, but the process of removing the glue layer during the later maintenance of the circuit board is complicated, which can easily damage the circuit board and other components, and it is difficult to completely remove the glue layer, which brings great difficulties to the maintenance work and increases the maintenance cost and time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an instant heating circuit board for a water dispenser, comprising a housing and a cover. The main body of the instant heating circuit board is fixedly installed inside the housing by fixing studs. A sealing groove is provided on the upper surface of the housing near the edge, and a sealing ring is provided inside the sealing groove. The cover is fixedly installed on the upper surface of the housing, and the cover and the housing are fixed together by screws. An insert ring is provided on the lower surface of the cover and is inserted into the sealing groove. A wiring hole is provided on one side of the outer surface of the housing. A connecting wire is fixedly connected to the upper surface of the main body of the instant heating circuit board. A rubber sleeve is fixedly fitted on the outer surface of the connecting wire, and both the rubber sleeve and the connecting wire pass through the wiring hole. A limiting ring is provided on the outer surface of the rubber sleeve, and the limiting ring is located inside the housing.

[0006] Preferably, an extension ring is provided on the upper surface of the housing near the edge, and the extension ring is inserted into the insertion ring, which serves to limit and fix the housing cover, thereby improving the stability of the housing cover.

[0007] Preferably, the outer surface of the shell cover is provided with supporting edges around its perimeter, and the supporting edges are in contact with the upper surface of the shell cover to provide support for the shell cover.

[0008] Preferably, a protrusion is provided on the bottom side of the inner wall of the housing near the wiring hole. A pressure plate is fixedly installed on the upper surface of the protrusion, and the pressure plate and the protrusion are fixed together by screws. Both the upper surface of the protrusion and the lower surface of the pressure plate are provided with serpentine grooves, and the rubber sleeve and the connecting wire pass through the serpentine grooves. The serpentine grooves play a role in fixing the connecting wire and the rubber sleeve, effectively preventing the connecting wire and the main body of the instant heating circuit board from separating due to pulling.

[0009] Preferably, a limiting groove is provided on the inner wall of both serpentine grooves near the wiring hole, and the limiting ring is located inside the limiting groove. The pressure plate and the protrusion block squeeze the limiting ring and the rubber sleeve, which improves the sealing performance at the wiring hole.

[0010] Preferably, the outer surface of the housing is uniformly provided with concave surfaces around its perimeter. The concave surfaces can increase the heat dissipation area of ​​the outer surface of the housing, which is beneficial to the heat dissipation of the housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention achieves waterproof functionality for the instant heating circuit board of a water dispenser by incorporating a housing, a cover, a sealing groove, an instant heating circuit board body, a sealing ring, a plug ring, connecting wires, wiring holes, a rubber sleeve, and a limiting ring. This also facilitates subsequent maintenance of the circuit board. The cover is fixed to the upper surface of the housing with screws. The plug ring is inserted into the sealing groove and presses against the sealing ring to seal the space between the housing and the cover. The housing and cover form a sealed space, providing waterproof protection for the instant heating circuit board body located within this sealed space. For maintenance of the instant heating circuit board body, the cover can be removed. The connecting wires between the instant heating circuit board body and the electrical components inside the water dispenser are led out to the outside of the housing through the wiring holes, while the rubber sleeve and limiting ring seal the wiring holes.

[0013] This invention, by incorporating a protruding block, a pressure plate, a serpentine groove, and a limiting groove, effectively secures the connecting wires inside the housing, preventing them from separating from the main body of the instant heating circuit board due to pulling. It also improves the sealing effect at the wiring hole. The serpentine groove secures the connecting wires and the rubber sleeve, effectively preventing separation of the connecting wires from the main body of the instant heating circuit board due to pulling. Simultaneously, the pressure plate and the protruding block compress the limiting ring and the rubber sleeve, further enhancing the sealing effect at the wiring hole.

[0014] This invention improves the stability of the cover by setting an extension ring to limit and fix the cover. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the shell of this utility model;

[0017] Figure 3 This is a partial three-dimensional structural diagram of the protrusion block of this utility model;

[0018] Figure 4 This is a partial three-dimensional cross-sectional view of the shell cover of this utility model.

[0019] Reference numerals: 1. Housing; 2. Wiring hole; 3. Connecting wire; 4. Housing cover; 5. Concave surface; 6. Protrusion; 7. Sealing groove; 8. Sealing ring; 9. Extension ring; 10. Pressure plate; 11. Instantaneous heating circuit board body; 12. Fixing stud; 13. Serpentine groove; 14. Rubber sleeve; 15. Limiting groove; 16. Limiting ring; 17. Insertion ring; 18. Support edge. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0021] like Figures 1-4As shown, the present invention proposes an instant heating circuit board for a water dispenser, comprising a housing 1 and a cover 4. The main body 11 of the instant heating circuit board is fixedly installed inside the housing 1 by a fixing stud 12. A sealing groove 7 is provided on the upper surface of the housing 1 near the edge, and a sealing ring 8 is provided inside the sealing groove 7. The cover 4 is fixedly installed on the upper surface of the housing 1 and is fixed to the housing 1 by screws. An insert ring 17 is provided on the lower surface of the cover 4 and is inserted into the sealing groove 7. A wiring hole 2 is provided on one side of the outer surface of the housing 1. A connecting wire 3 is fixedly connected to the upper surface of the main body 11 of the instant heating circuit board. The main body 11 of the instant heating circuit board is electrically connected to the electrical components inside the water dispenser through the connecting wire 3. A rubber sleeve 14 is fixedly sleeved on the outer surface of the connecting wire 3, and both the rubber sleeve 14 and the connecting wire 3 pass through the wiring hole 2. A limiting ring 16 is provided on the outer surface of the rubber sleeve 14. The limiting ring 16 and the rubber sleeve 14 are integrally formed and the limiting ring 16 is located inside the housing 1.

[0022] An extension ring 9 is provided on the upper surface of the housing 1 near the edge. The extension ring 9 and the housing cover 4 are integrally formed and the extension ring 9 is inserted into the insertion ring 17. The extension ring 9 inserted into the insertion ring 17 limits the housing cover 4. Supporting edges 18 are provided around the outer surface of the housing cover 4. The supporting edges 18 are integrally formed with the housing cover 4 and contact the upper surface of the housing 1 to support the housing cover 4. Concave surfaces 5 are uniformly provided around the outer surface of the housing 1. The concave surfaces 5 can increase the heat dissipation area of ​​the outer surface of the housing 1, which is beneficial to the heat dissipation of the housing 1.

[0023] In this embodiment, the cover 4 is fixed to the upper surface of the housing 1 by screws. The insert ring 17 is inserted into the sealing groove 7 and squeezes the sealing ring 8 to seal the housing 1 and the cover 4. The housing 1 and the cover 4 form a sealed space and provide waterproofing for the instant heating circuit board body 11 located in the sealed space. When repairing the instant heating circuit board body 11, the cover 4 can be removed. The connecting wire 3 between the instant heating circuit board body 11 and the electrical components inside the water dispenser is led out to the outside of the housing 1 through the wiring hole 2. The rubber sleeve 14 and the limiting ring 16 seal the wiring hole 2. Example 2

[0024] like Figures 1-3As shown, the present invention proposes an instant heating circuit board for a water dispenser. Compared with Embodiment 1, this embodiment further includes a protrusion 6 on the bottom of the inner wall of the housing 1 near the wiring hole 2. The protrusion 6 and the housing 1 are integrally formed. A pressure plate 10 is fixedly installed on the upper surface of the protrusion 6, and the pressure plate 10 and the protrusion 6 are fixed together by screws. Both the upper surface of the protrusion 6 and the lower surface of the pressure plate 10 are provided with serpentine grooves 13, and the rubber sleeve 14 and the connecting wire 3 pass through the serpentine grooves 13. Limiting grooves 15 are provided on the inner walls of the two serpentine grooves 13 near the wiring hole 2, and the limiting ring 16 is located inside the limiting groove 15.

[0025] In this embodiment, the serpentine groove 13 fixes the connecting wire 3 and the rubber sleeve 14, effectively preventing the connecting wire 3 from separating from the main body 11 of the instant heating circuit board due to pulling. At the same time, the pressure plate 10 and the protrusion 6 squeeze the limiting ring 16 and the rubber sleeve 14, improving the sealing performance at the wiring hole 2.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A water boiler instant heating circuit board comprising a housing (1) and a housing cover (4), characterized in that: The housing (1) is fixedly installed with a hot-heating circuit board body (11) by a fixing stud (12). A sealing groove (7) is provided on the upper surface of the housing (1) near the edge. A sealing ring (8) is provided inside the sealing groove (7). A cover (4) is fixedly installed on the upper surface of the housing (1), and the cover (4) and the housing (1) are fixed by screws. A plug ring (17) is provided on the lower surface of the cover (4), and the plug ring (17) is inserted into the sealing groove (7). A wiring hole (2) is provided on one side of the outer surface of the housing (1). A connecting wire (3) is fixedly connected to the upper surface of the hot-heating circuit board body (11). A rubber sleeve (14) is fixedly sleeved on the outer surface of the connecting wire (3), and both the rubber sleeve (14) and the connecting wire (3) pass through the wiring hole (2). A limit ring (16) is provided on the outer surface of the rubber sleeve (14), and the limit ring (16) is located inside the housing (1).

2. The instant heating circuit board of the water dispenser according to claim 1, wherein: An extension ring (9) is provided on the upper surface of the housing (1) near the edge, and the extension ring (9) is inserted into the insertion ring (17).

3. The instant heating circuit board of the water dispenser according to claim 1, wherein: The outer surface of the shell cover (4) is provided with supporting edges (18).

4. The instant heating circuit board of the water dispenser according to claim 1, wherein: A protrusion (6) is provided on the bottom of the inner wall of the housing (1) near the wiring hole (2). A pressure plate (10) is fixedly installed on the upper surface of the protrusion (6), and the pressure plate (10) and the protrusion (6) are fixed together by screws. A serpentine groove (13) is provided on the upper surface of the protrusion (6) and the lower surface of the pressure plate (10), and the rubber sleeve (14) and the connecting line (3) pass through the serpentine groove (13).

5. The instant heating circuit board of the water dispenser according to claim 4, wherein: Both of the serpentine grooves (13) are provided with limiting grooves (15) near the wiring hole (2) on their inner walls, and the limiting ring (16) is located inside the limiting groove (15).

6. The instant heating circuit board of water dispenser as claimed in claim 1 wherein: The outer surface of the shell (1) is uniformly provided with concave surfaces (5) around its perimeter.

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